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M.C. Dean, Inc Logo M.C. Dean, Inc · IT - Administration

Design Engineer 3

United States, Tysons · Job Posted June 10, 2026
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Job Description

We are seeking a Design Engineer 3 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets.

Job Responsibility

  • Support review of customer requirements and assess design constraints in order to develop a design which meets the needs of the customer
  • Plan for and participate in Electronic Security System (ESS) and physical security system site surveys during all phases of projects
  • Support development of security system Engineering Installation Design Packages including the creation of Block Diagrams, Riser Diagrams, Mounting, and Wiring Details in AutoCAD
  • Support creation of project and device schedules with the Engineering Installation Design Packages
  • Support creation of cable, device, and Performance Verification Test (PVT) plans
  • Support planning for and participate in Pre-Installation Testing and Checkout (PITCO) processes including system programming, integration testing, and equipment build outs
  • Complete various calculations, including but not limited to power, heat, voltage drop, conduit sizing and bandwidth
  • Assist with development of sequence of operations, compliance matrices, and other project support documentation
  • Apply understanding of related industry documentation such as NEC, NFPA, UL Code (294, 1076, and 2050), ICD 705, NISPOM
  • Participate in new technology/product evaluations and recommendations
  • Effectively communicate the status of all work and report roadblocks early and directly to project and divisional management
  • Support the updating, tracking, and close out all engineering changes and issues, working in coordination with the assigned Project Manager or Engineering Manager
  • Regularly attend and participate in internal and client review/status update meetings
  • Interface with customer stakeholders to answer questions and present design solutions
  • support resolution of project issues working in conjunction with the Engineering Manager
  • Assist in the bids and proposals process to capture new work

Requirements

  • Bachelor’s Degree in a technical/engineering related discipline, such as Electrical Engineering, Mechanical Engineering, Systems Engineering, or similar
  • 5+ years of progressive experience in engineering with a Bachelor's Degree
  • Experience with electronic security and IT systems desired
  • Familiarity with networking concepts, including use of routing protocols and switching technologies, LAN/WAN medias and protocols, and firewall configuration and protocols desired
  • Ability to work effectively in a fast-paced collaborative environment
  • Ability to effectively communicate with various customers, vendors and peers
  • Ability to effectively use AutoCAD or another computer aided drafting/modeling tool desired
  • Proficient in MS Word, Excel, and PowerPoint
  • Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information
  • Ability to obtain a TS/SCI w/ Poly

Nice to have

  • Experience with electronic security and IT systems
  • Familiarity with networking concepts, including use of routing protocols and switching technologies, LAN/WAN medias and protocols, and firewall configuration and protocols
  • Ability to effectively use AutoCAD or another computer aided drafting/modeling tool

What we offer

  • A collaborative team inspired by the way engineering and innovation enhance customer outcomes
  • An opportunity to lead and build a business with the support of an industry-leading firm that has been in business for 75 years
  • Investment in your skills and expertise through a combination of professional and technical training programs, including leadership training and tuition reimbursement
  • Open and transparent communication with senior leadership as well as local office management
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